Heterosis in relation to genetic divergence and specific combining ability in groundnut (Arachis hypogaea L.)

    Arunachalam, V and Bandyopadhyay, A and Nigam, S N and Gibbons, R W (1984) Heterosis in relation to genetic divergence and specific combining ability in groundnut (Arachis hypogaea L.). Euphytica, 33 (1). pp. 33-39. ISSN 1573-5060

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    Abstract

    The frequency and magnitude of heterosis were examined in relation to genetic divergence among parents in two diallel cross experiments in groundnut. The parents were grouped into clusters based on their diver-gence. The range, mean and standard deviation of the intra-and inter-cluster divergence were used to define four divergence classes. The frequency of heterotic crosses and the magnitude of heterosis for yield and its components were found to be higher in crosses between the parents in intermediate divergence classes than extreme ones. The results agreed well with the overall status of the specific combining ability of these crosses

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Arachis hypogaea, genetic divergence, heterosis, combining ability, diallel crosses, D2 statistic
    Subjects: Mandate crops > Groundnut
    Depositing User: Ms K Syamalamba
    Date Deposited: 12 Sep 2011 10:30
    Last Modified: 27 Aug 2013 09:28
    URI: http://oar.icrisat.org/id/eprint/1391
    Official URL: http://dx.doi.org/10.1007/BF00022747
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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